Which expression shows the first step in simplifying 2x – 3(x + 2y) – 5(y – 7x)?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.